I started with the EGV protector, even bought a couple of boxes, with the view they would need replacing every so often.
Although the protector fitted great, looked great, and seemed to do the job really well, I struggled to get on with the 'feel' of a plastic surface. So a couple of weeks in and I swapped to a glass full adhesive UV protector, like on my last couple of phones. I've posted a coupe of pictures in this thread a few pages back.
The glass protector, is wonderful to use, especially with the way I Swype to type. Super smooth, mostly fingerprint resistant, and dead easy to clean. Obviously the S-pen feels great on glass also. They are very hardy, but it's early days. No issues at all, love it